Holder for applying slip-covers to receptacles.



G. T. SMALL. HOLDER FOR APPLYING SLIP COVERS T0 RECEPTAGLBS APPLIUATION IILBD DEO.11, 1912.

PatenteolMar.30,1915.,

WITNESSES: IIVVENTOR GTSmall,

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a can CHESLEY 'I'. SMALL, OF ST. LOUIS, MISSOURI, ASSIGNOR, BY MESIIE ASSIGNMENT8, CIO AUTOMATIC CAN FILLING- MACHINERY CGMPANY, OF NEWARK, NEW JERSEY, A

CORPORATION OF NEW JERSEY.

HOLDER FOR APPLYING SLIP-COVERS T0 REGEP'IAGLES.

Specification of Letters Patent.

Patented Mar. 38, 1915.,

Application filed December 11, 1912. Serial No. 736,077.

To all whom it may concern:

Be it known that I, Cnnsnnv T. SMALL, a citizen of the United States of America, residing at the city of St. Louis, State of Missouri, have invented a certain new and use ful Holder for Applying Slip-Covers to Receptacles, of which the following is such a full, clear, and exact description as will enable any one skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to holders for applying slip covers to receptacles and is particularly adapted for use in connection with paper covers. In such covers, the flanges of the covers are likely to become bent inwardly so as to strike the upper edge of the receptacle when they are applied, thus damaging either the cover, or the receptacle, or both.

The object of my invention is to provide pneumatic means for drawing the flanges of the cover out against the interior face of the holder, thus obviating the difficulty above referred to.

In the present application, I have shown a specific form of holder which is particularly adapted for use in the form of machine shown in my prior application Serial No. 716,257, filed August 21, 1912.

In the accompanying drawings, which illustrate one form of holder made in accordance with my invention, Figure 1 is a top plan view and Fig. 2 is a vertical central section.

Like marks of reference refer to similar parts in both views of the drawings.

5 represents one of the arms carried by the turret of the machine in my above referred to application. This arm 5 has secured to it by means of a tapered pin 6 a holder 7. This holder 7 is adapted to receive in its upper part a cap 8 and in its lower part the end of the body of a can 9 or other receptacle to which the cover 8 is to be applied. The upper part of the holder is provided with a bevel 10 for guiding the cap 8 into proper position within the walls 11 of the upper part of the holder. The lower part of the holder is provided with a similar bevel 12 for guiding the body of the can 9 into the space formed by the walls 13 of the lower part of the holder. The upper and lower parts of the holder are divided by a passage 14.- adapted to receive a division plate, such as is described in my above mentioned application, for holding the cap 8 in the position shown in the dotted lines in Fig. 2 when the cap is introduced into the holder 7. The above mentioned parts are similar to those described in my application above referred to.

In order to hold the flanges of the cap 8 against the walls 11 and 13 of the holder, I provide within the holder a pair of air ducts 16 and 17 respectively, the duct 16 being arranged above the passage 14-, and the duct 17 below the same. These ducts are annular in shape and are connected at the rear of the holder by means of an upwardly extending port 18. Leading from the air duct 16 to the inner walls 11 of the upper part of the holder are a number of inlet openings 19 and from the duct 17 to the inner face of the walls 13 are a plurality of similar inlet passages 20. These inlet passages 19 and 20 are counter sunk or champfered, as shown in the drawings, to prevent the edge of the cover flange from catching against the edge of these openings. The lower part of the holder 7 is provided with a projection 21 which is hollow and communicates with the air duct 17. In order to provide this projection 21 with a yielding end, I vulcanize, or otherwise, secure between the end plate 23 of this projection and the body thereof a ring 22 of rubber or other flexible material. Communicating with the projection 21 is an exhaust pipe 24 which is provided with a yielding end similar to the end of the projection 21 and like it, secured by means of a ring 25 of rubber or other yielding material, and an end plate 26 as has been described in my prior application. The arm 5 is suspended so as to have more or less a lateral movement as it turns on the axis of the turret. In order to hold the end of the projection 21 against the end of the exhaust pipe 24, I secure to any suitable rigid support, such for instance, as the exhaust pipe 24, an arm 27 carrying a double track 28 adapted to receive a lug 29 projecting downwardly from the holder 7. It will be understood that this track and lug together form a guide for holding the end of the projection 21 against the exhaust pipe 2 1.

The operation of my device will be readily understood from the above description.

When the cap 8 is discharged into the holder by the feeding mechanism, the cap 1 will assume the position shown in the dotted lines in Fig. 2, resting on the division plate, not shown. lVhen the holder moves to the next position, the cap will be forced down over the body 9 of the receptacle by a suit able plunger.- As the holder reaches this position, the projection 21 will be moved into contact with the exhaust pipe 24:, as shown in Fig. 2, so as to place the air ducts 16 and 17 in communication with the air pump and so reduce the pressure in said ducts. The first effect of this will be to draw the flanges of the cap 8 out against the walls 11 by the inrush of air through the openings 19. As the cap is forced down into position over the body of the receptacle, the flanges of the cap 8 will be drawn against the walls 13 of the lower part of the holder by the inrush of air from the passages 20. In this way, the flanges of the cover will beheld out in their normal position and prevented from striking against the edges of the receptacle 9, as might otherwise occur.

Having fully described my invention, what I claim as new and desire to secure by Letters-Patent of the United States is:

1. The combination with a holder adapted to receive and guide a cover, of means for holding the flange of said cover outwardly to insure its passage over the mouth of the can, said means engaging with the outside only of the cap whereby the interior of the cap is left free and unobstructed.

2. The combination with a holder adapted to receiveand guide a cover into position on the can body, of an air duct formed in said holder, a plurality of inlets leading from the inneriface of said holder to said air ducts, and means for reducing the air pressure in said duct, whereby the sides of the cover are held outwardly against the holder.

3. The combination with a holder adapted to receive the end of a receptacle body and a receptacle cover, said holder having a passage for a division plate to support said receptacle body and cover, said holder being also provided with a pair of air ducts, one arranged at each side of said passage, a plurality of inlets leading from the inner face of said holder to said ducts, and means for reducing the air pressure in said ducts.

4:. The combination with a movable holder adapted to receive a guide cover, said holder being provided with an air duct communieating with the inner face of the holder, of a suction pipe for reducing the pressure in said air duct, and means for guiding said holder into contact with said suction pipe.

5. The combination with a movable holder adapted to receive a guide and cover, said holder being provided with an air duct communicating with the inner face of the holder, of a hollow projection carried by said holder and communicating with said air duct, said projection having a yielding end, and a suction pipe adapted to contact with said projection.

6. The combination with a movable holder adapted to receive and guide a cover, said holder being provided with an air duct communicating with the inner face of the holder, of a hollow projection carrying the said holder and communicating with said air duct, and a suction pipe adapted to contact with said projection, said suction pipe being provided with a yielding end.

In testimony whereof, I have hereunto set my hand and aflixed my seal in the presence of the two subscribing witnesses.

CHESLEY T. SMALL. [1 s.]

Witnesses:

N. A. ALEXANDER, G. M. SHORE.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Eaten,

Washington, D. G. 

